* {
    margin: 0px;
    padding: 0px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    border: 1px solid #ccc;
    padding: 8px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #333;
    padding: 10px;
    height: 55px;
}

.navbar ul {
    list-style: none;
    display: flex;
    float: left;

}

.navbar a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    text-align: center; /* 文本居中 */
    line-height: 55px; /* 链接上/下左/右间距 */
    margin-right: 120px; /* 链接右边距 */
}

/* 鼠标悬停时链接颜色变化 */
.navbar a:hover {
    color: #ccc;
}

.container-listuser {
    width: 80%;
    margin: 0 auto;
}


.userinfo {
    color: white;
}

.gotologin {
    font-size: 18px;
    color: white;
}

header {
    background-color: #f1f1f1;
    text-align: center;
    padding: 50px 0 30px 0;
}

.user-delete {
    padding: 5px 10px;
    font-size: 16px;
    color: white;
    background-color: hotpink;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-right: 10px;
}

.user-update {
    padding: 5px 10px;
    font-size: 16px;
    color: white;
    background-color: dodgerblue;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-left: 10px;
}